Introduction
This manual provides instructions for the installation, operation, and maintenance of your Denali Pure Replacement Polypropylene Sediment Filter. This filter is designed to replace the Glacier Bay HDGUSS4 filter and is compatible with Glacier Bay Basic Drinking Water Filtration Systems. Please read these instructions carefully before installation and keep them for future reference.
Safety Information
- Always turn off the water supply before attempting to install or replace the filter.
- Relieve water pressure in the system before opening the filter housing.
- Use appropriate tools and follow all local plumbing codes.
- Do not use with water that is microbiologically unsafe or of unknown quality without adequate disinfection before or after the system.
- Ensure all connections are secure to prevent leaks.
Package Contents
Your Denali Pure Replacement Polypropylene Sediment Filter package should contain the following:
- 9 x Denali Pure 10-inch 5-Micron Polypropylene Sediment Filters (Model: WF-RO-PP10-9PK-DL189)

Image: A single Denali Pure 10-inch 5-Micron Polypropylene Sediment Filter, white and cylindrical in shape.
Setup and Installation
Follow these steps to replace your sediment filter:
- Turn off Water Supply: Locate the main water supply valve to your filtration system and turn it off.
- Relieve Pressure: Open a nearby faucet to release any pressure in the water lines. Allow water to drain until the flow stops.
- Open Filter Housing: Use a filter wrench (if provided with your system) to unscrew the filter housing. Carefully remove the housing, being mindful of any residual water.
- Remove Old Filter: Discard the old sediment filter.
- Clean Housing: Clean the inside of the filter housing with warm, soapy water. Rinse thoroughly to remove any soap residue. Inspect the O-ring for cracks or wear; replace if necessary. Lubricate the O-ring with a food-grade silicone grease if available.
- Insert New Filter: Unwrap the new Denali Pure sediment filter. Insert it into the filter housing, ensuring it is centered on the standpipe at the bottom of the housing.
- Secure Housing: Screw the filter housing back onto the filter head. Hand-tighten until snug, then use the filter wrench for an additional 1/4 to 1/2 turn to ensure a leak-free seal. Do not overtighten.
- Restore Water Supply: Slowly turn on the main water supply valve. Check for any leaks around the filter housing.
- Flush System: Open a nearby faucet and allow water to run for 5-10 minutes to flush out any air and fine carbon particles (if applicable to your system, though this is a sediment filter).

Image: A Denali Pure sediment filter, showing its cylindrical shape and hollow core, ready for insertion.
Operating Instructions
Once installed, the Denali Pure sediment filter will begin filtering water immediately. This filter is designed to remove sediment, dirt, rust, and other particulate matter from your water supply, improving water clarity and protecting downstream filtration components.
- The filter operates passively as water flows through your system.
- No special adjustments are required after installation.
- Monitor water flow and clarity for signs of filter exhaustion.
Maintenance
Regular replacement of your sediment filter is crucial for optimal performance and water quality.
- Replacement Schedule: It is recommended to replace the Denali Pure sediment filter every 3-6 months, or sooner if you notice a significant drop in water pressure or a decrease in water quality (e.g., increased turbidity). Actual replacement frequency may vary based on water quality and usage.
- Visual Inspection: Periodically inspect the filter housing for any signs of leaks or damage.

Image: An end view of the Denali Pure sediment filter, showing the central opening for water flow.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Reduced Water Flow | Clogged filter, air in the system, partially closed valve. | Replace filter, flush system, ensure all valves are fully open. |
| Water Leaks from Housing | Improperly seated O-ring, damaged O-ring, loose housing. | Turn off water, relieve pressure, reseat/replace O-ring, tighten housing. |
| Cloudy Water After Installation | Air trapped in the system. | Flush the system by running water for 5-10 minutes. |
Specifications
- Model Number: WF-RO-PP10-9PK-DL189
- Filter Type: Polypropylene Sediment Filter
- Micron Rating: 5 Micron
- Size: 10-inch Universal Standard
- Material: Polypropylene (PP)
- Compatibility: Glacier Bay HDGUSS4 and compatible 10-inch systems
- External Testing Certification: NSF
- UPC: 734639225304
Warranty and Support
This Denali Pure product is covered by warranties offered solely by Denali Pure. This product is not affiliated with any OEM brands and is not covered under any warranties offered by the original manufacturers.
For support or warranty inquiries, please contact Denali Pure directly through their official channels. Refer to your purchase documentation for specific contact information.
Return Policy: This product typically has a 30-day refund/replacement return policy. Please check with your retailer for specific return details.